Suspension faults are one of the top causes of NCT failure, meaning that shock absorber and coil spring replacements are common garage tasks. With this in mind, NAPA has highlighted the importance of replacement in pairs.  

NAPA experts point out that a damping system with mismatched levels of wear will not be able to operate effectively. For example, replacing only one shock or spring can disrupt the balance of the vehicle, resulting in an uneven ride height. This imbalance exerts additional stress on unreplaced components, leading to premature wear and potential failure.

Added to this when shocks and springs are mismatched, the damping forces on each side of the vehicle differ significantly, affecting handling and stability. The vehicle may exhibit abnormal behaviours, such as excessive body roll or uneven braking.

Failing to replace in pairs can also compromise vehicle control and safety. If one spring has failed, it's likely that the other spring is also nearing the end of its lifespan, increasing the risk of failure.

By replacing shocks and springs in pairs the technician can: 

• Ensure balanced ride height and optimal vehicle handling
• Extend the life of both springs
• Improves shock absorber performance
• Enhance vehicle safety

By making a small addition investment in a pairs replacement the driver can also avoid the inconvenience of a return workshop visit. 

NAPA also recommends that any mounting kits (such as top mounts) and bearings are also replaced. Failure to replace these can accelerate the wear on the new components fitted.

All NAPA components are manufactured to exacting OE specifications and benchmark tested against the original equipment. In a recent durability benchmark test of a (NST8000) NAPA Mounting Bush against the OE, the NAPA part performed 300,000 cycles. The OE completed 171,000 cycles. This is just one example of NAPA going above and beyond industry standards to ensure quality. 

NAPA Steering and Suspension parts offer exception OE quality for long lasting durability and corrosion resistance. They are also backed by a 3-year/36,000-mile warranty guarantee.   

For more information visit:  https://napaautoparts.eu/en/